Apparatus for carbureting air



Aug. 2i, 1923.

A. s. Bla-.AVON

APPARATUS FOR CARBURETING AIR Filed Aug. 14, 1922 2 Sheets-Sheet 1 @www ra 1Q ATT@ Q may A. s. Bl-:AvoN

APPARATUS FOR CARBURETING AIR Aug. 21, 1923.

Fled Aug. 14, 1922 2 sheets-sheet 2 uw 'Y WWII/55555 ff Patented ug. 21, 1923.

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.ALFRED SYDNEY BAVON, OF GLASGOVJ, SCOTLAND.

APPARATUS FOR CARBURETING AIR.-

Applicati-on filed August 14, 1922. Serial No. 581,904. y

To allwlwm'z'zfmay concern.' Y I Be it known that I, ALFRED SYDNEY BEAvoN, 149 Hill Street, Garnethill, Glasgow, Scotland, a subject of the King of Great Britain, have invented certain new and useful Improvements in and ConnectedY with Apparatus for Carbureting Air, ofY

mixed and carburetted condition through- Athe valve, and to further carburet the air through forcing the same through` a body of gasoline within the pump structure, the carkburetted air being finally delivered to ai gas holder which. automatically controls the open and closed positions of the valve.

In order thatthe invention may be more clearly understood, reference is made to the accompanying drawings which. show one construction of apparatus by way of ex-I ample:

Fig. 1 is a part sectional view paratus.

Fig. 2 is a part sectional view of the pump casing and of the rotary. drum and of the valve. y

Fig. 3 is a sectional view of the volatile fuel feeding means. Y

Referring more particularlyV to Figs.V 1

of the apand 2, a volatile fuel container 1 is closed bya cover 2, provided with an air hole 2, and is securely fastened to the-casing of a rotary pump 3, and volatile fuel is supplied to the container through the pipe 4. A shaft 6 is rotatably mounted in the container 1, and a cam 5 is secured to the end which projects into the container, a handle 7 being secured to the outer end. The handle 7 is .provided with a pin 8 adapted to engage in holes 9 formed in the quadrant 10, arranged on the side of the container 1,. (or it may be prof vided with an opening adapted to engage pins securedlin the quadrant) whereby the .lever is adapted to be set in a number of different positions and to-move the cam 5 as required. The buckets 11 `are' provided with lips 12 and are pivotallymounted jon pins '13.which are secured to the ends of a spider 14, fixed to-the inner end of a shaft l5 rotatably mounted in, the container` 1. The buckets are formed 'for provided with pins, or projections, 16 which serve to engage the cam 5 andvto tip the buckets during the rotation of thev spider 14. A vessel `17 is formed or provided inthe container 1 y vand is arranged to receive the volatile vfuel discharged vby vthe bucketsduring their r'o.

tation.v 'A pipe, .18, is arranged todeliver the volatile fuel from the vessel 17 through-y Aan aperture, 20, provided in a cylindrical is, preferably'mounted on, and communi-4 cates with, the outerlcasing ,of the rotary pump 3. A valve 22 is slidably fitted withinl the valve casing 19, and is preferably ofla cylindrical cup-shaped form.with two parallelV slots 23 in the bottom on either side-of a horizontal portion 24,5provided with .a downwardly projectingl stem 25 which is `formed with akdisc 26 provided with `an outer bevelled edge, adapted to co-act with the valve seat 21 toropen orclose the openving 27 formed therein. The interior of the valve '22 is preferably rounded at the bottom! to facilitate the passage `of air, which enters therein, to the slots 23.V The valve, herein-i after termed the carbureting valve, therefore .comprises the Acasing 19, the valve'22,

the gasoline inlet 20,- the air inlets 23an'd.

the valve seat 26. t Y.

The pump 3 comprises a rotary drum28 which embodies two chambers 71,72, Fig. 3 separated by a division plateY arranged parallel with the end flat walls 73, 74, of the drum. The latter is fixed toa shaft 34,7rotatably mounted in the pump casing 29, and is arranged to be rotated `by a suitably` driven shaft/30, rotatably mounted in brackets secured by bolts 31 to the pump casing. The

shaft 30 is extended beyondl the supporting bracket and a sprocket 36 is secured thereto and serves to drive the spider shaft 15v in fthe Vcontainer 1, by means ofv an endlessA chain 37 and sprocket 38 :fixed to the shaft 15, Vsimultaneously with the rotation of shaftV 34. The chamber 71 inthe rotary' drum 28 is fitted internally with lblades or` vanes 39, whichV extend from the peripheral wall ythereof to the centre, and each bladeor vane .comprisesan outer fiat portion 41 and `an .inner curved portion 42. The blades or vanes divide the interior of the chamber containing ythe same, into compartments 43,

Yeach of which is, provided with an-inlet 44,

am' QFFICPE- Vvalve casing 19, (see `also Fig. 2) which Y' in 'the form of a slot or opening in the peripheral wall ofthe chamber in close proximity to the rear of the blade or vane relatively to the direction of rotation of the drum. Each compartment 43 is also provided with one or more outlets 46, formed in the division plate 45, and close to the con- The gas holder, Fig. 1, comprises a tank 50 anda bell 51, and is adapted to be sealed by liquid contained in the tank 50, and to be guided therein by grooved rollers 52, en-

gaging pillars 53 securedto the tank 50. A

bearing 54 is provided with arms 55' which are supported on the upper ends of the pillars 53, and a rod 56 is slidably fitted therein. The rod 6 is formed at its lower end with a ydisc-5.7, and is adapted to be pushed upwards by the Contact of. the bell51 with theY disc 57Qand to beheld' downwardswhen ,the bell'is not in engagement with the` disc 57'by means of a spring 5,8', which is accommodated, at its-upper end, on the bearing 57 and bears, at its lower end, against a washer 59 secured on the rod 56. The upper end of the rod 56 terminates in a fork, and

i theiend 59a of a cross lever 60 is pivotally mounted on a pin 61 fixed in the rod. The

. cross lever is pivotally supported onta fulcruni pinA 62 fixed in a bracket 63, which is supported at the upper end of the pillar 53. The-,other end 64 of' the lever 60 is provided with a slot 65, and a pin 66, movable therein, is secured to the forked end 67 of a rod 68'projecting downwards, and screwing into the stein25 of the carbureting valve 22. The .gas inlet pipe 40 and an outlet pipe 69 provided in the tank50 are arranged to project above the level of the water in the tank.

The pump 3 and the gas holder are adapted to be supported by a stand or support 70.

The operation of the apparatus is as follows Volatile fuel is introduced into the container 1 through the inlet pipe 4, and the outer casing 29 of the pump3 is filled to approximately three fourths of its capacity with fuel.

Before the gas is generated, the bell 51, (Fig. V1) is at its lowest depth in the tank 50, and the spring 58 has moved the rod 56 downwards and, by means of the cross Ilever G'Ofulcrumed on the pin 62-has caused the rod 68 and c arbureting'v valve 22 secured thereon tor be movedA upwards. The fall of the weight (not shown) causes the'drum 30 and shaft 30. to be rotated and b y means of the chain 4sprockets 32, 38 and 33 and `chains 37 Vand 35, the spider 14 and the rotary drum 28 of the pump are rotated simultaneously. The buckets 11 (Figs. 1 and 2) are` filled with the volatile fuel-from the containerlfa-nd, during their upward rotation, the cam 5 engages lEhe projections 16 on the buckets and causes the latter to be tilted to a degree determined by the height of the point of contact'of Vthe projections 16 with the curved surface of the cam, which can be made to take place at a higher or lower point, as required, by engaging the pin 8, on the lever 7, with a different hole 9 in ythe quadrant 10. The buckets discharge the whole or part of their contents into the vessel 17 according to the adjusted position of the cam. 1

The rotation of the rotary drum 28 causes air to be drawn through the slots 2,3, in the valve 22, and the volatile fuel from the ves- 18, aperture, or apertures, 20fin adirectien atV right angles, or thereabouts to the" direction of flow of the air intothe pump` casing, and the air becomes lcarburetted by Contact with the volatile fuel transversing across :the slots 23, in the passage formedl between the shoulder 22a ofthe valve and the disc 26.`

it rises to the surface ofl the liquid, which was depressed within the compartment to which the gas was admitted', andy passes into the outlet pipe 47. After the gas has been discharged from the compartments 43", the latter becomes filled withy liquid, until' the inlets 44 again rise above the surface of the liquid when it is discharged therefrom. The gas passes through the outlet pipe 47, tube 48, and pipe 49 into the gas holder, and causes the. latter to, rise in the tank 50, until its upper surface comes into contact with the shoulder 57 on'the rod- 56, and forces the latter- `upwards against the pressure of the spring 5:8. The upward" 'travel' of the rod 56 oscillates the cross. leverY Oabout the fulcrurn pin 62, and'v depresses .the endl 64 of the cross lever and the rod' 6 6, whereby they bevelled disc 2,6 on the earbureting valve 22 is. forced down upon its seat, and shuts ofi1l the supply of air gasto thepunip -sel 17, inthe container, 1, is drawn into the Y valve casing 19, through the pipe, or pipes 3. Means are yprovided at the. junction of for the removal lof any liquid which may collect therein.

vIt will be apparent from the above descripl t-ion that through proper adjustment of the cam 5, the buckets 11 may be tilted to any degree desired, and hence the quantity of gasoline discharged into the chamber 17 b-y in air through the slots 23 and Will also draw in gasoline through the pipe 18.V Ifl the bucket has. delivered a very small quantity of gasoline to the chamber 17 this is all Vthe gasoline that Will be admitted through the pipe 18 to the carbureting valve, and whether this amount be'seve'ral drops or a. much larger quantity, it is all that will be delivered under the operation of a single bucket, as under any circumstances the level of gasoline in the chamber 17 Will be below the lowest inlet level of the pipe 18 Y after each discharge of gasoline through the pipe 18. It is obvious that it istheintention to deliverthis gasoline to the carbureting valve in such quantities that the larger portion thereof will be taken up by the air, that is, utilized to carburetthe air, While the remaining portion,if any, will flow past the valveA 22 into the pump 3 to maintain the normal supply therein. Gbviously, this regulation can be easily made by causing the buckets to deliver only a predetermined quantity of their contents as they arrive in discharge condition.

`What I claim as my invention and desire to secure by Letters Patent is 1. In apparatus `for carbureting air With a volatile fuel, comprising a container for the fuel, a pump, a gas holder open to the pump, a valve to admit air to the pump, and means to admit volatile fuel in predetermined quantities and at predetermined intervals to the valve to be mixed with the incoming air, to thereby form a mixture of air andfuel for admission through the valve to the pump. Y

2. An apparatus for carbureting air With a volatile fuel, comprising a container for the volatile fuel, a pump, a gas holder open to the pump, means for supplying the volatile fuel in regulated quantities, and avalve having slots to admit air to the interior of the valve casing and thereafter to the pump, said valve casing having a mixing chamber to receive the regulated quantities of volatile Ifuel for the admixture ofthe air therewith.

3. An apparatus for carbureting air, comprising a container for a volatile fuel, a pump, a gas holder open to the pump, means for supplying the volatiley fuel in regulated quantities from the container, a valve to which said volatile fuel in regulated quan- Y tities is delivered, said valve also admitting air mixed with said volatile fuel rto the pump, and means for automatically controlling the operation of the valve.

41. An apparatus yfor carbureting air, comprising a container yfor volatile fuel, a pump, a gas holder open to the pump, means forv supplying the vvolatile fuel in regulated quantities from. the container, a valve to which said .volatile fuel in regulated quantities is delivered, said Valve also admitting air mixed With said volatile Ifuel to the pump, and valve operating means automatically controlled by the gas holder.v

5. An apparatus for carbureting air With a volatile fuel, comprising a container fork the fuel, a pump, a gas holder open to the pump, a valve adapted to admit air and fuel to the pump, and means for delivering fuel in regulated quantities to the valve, said means including a spider rotatably mounted inthe container, buckets pivotally mounted on the spider and formed With projections, a cam pivotally mounted in the container and adapted to contact with the bucket projections, and means for regulating the height of the point of contact of said cam with the projections.

6. An apparatus for carbureting air with a volatile fuel, comprising aY container for the fuel, a pump, a gas holder open to the pump, a. valve adapted to admit air and fuel Yto theI pump, and means for delivering fuel in regulated quantities to the valve, said l means including a spider rotatably mounted in the container, buckets pivotally mounted on the spider and formed With projections, a cam pivotally mounted in the container and adapted to contactrvvith the bucket rojections, and a handle adapted to adijust said cam for regulating a point of contact with the projections.

In testimony whereof I allix my signature in vpresence of tvvo Witnesses.

ALFRED SYDNEY BEAVON. Witnesses:

MARY GREEN, JAMES RARIS. 

